{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2911-2HA02-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2911-2HA02-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RH2911-2HA02-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2911-2HA02-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH2911-2HA02-ZX95 auxiliary switch, front-mount, 2 NC, spring-loaded terminals, 10 A, IP20, for 3RT2/3RH2 contactors.","salesMarkdown":"## What This Auxiliary Switch Does on a Contactor The 3RH2911-2HA02-ZX95 is a front-mounted auxiliary switch block for Siemens SIRIUS 3RT2 contactors and 3RH2 contactor relays — it adds two normally-closed (NC) signal paths to the base device without expanding the panel footprint. Rated 10 A maximum, with a rated current that varies by voltage: 10 A at 24 V, 4.7 A at 60 V, 3 A at 110 V, 1.2 A at 220 V, 0.5 A at 440 V, and 0.26 A at 600 V. The AC-15 rating at 690 V is 1 A — that is the switching capacity for inductive loads like contactor coils or solenoid valves in a control circuit. The insulation voltage is 690 V at pollution degree 3, and surge voltage resistance is 6 kV — this means the switch is rated for use in industrial environments with moderate conductive contamination, and it can withstand transient overvoltages common in motor control panels. ## Snap-On Mounting and Terminal Specs Fastens by snap-on mounting directly to the front of the contactor or relay — no tools or DIN rail required. Dimensions: 36 mm wide, 47.7 mm deep, 41.5 mm high. Spring-loaded terminals accept two conductors per clamp: 2x (0.5…1.5 mm²) with ferrule or 2x (0.5…2.5 mm²) without, and 2x (20…14 AWG). The spring-clamp design speeds wiring — strip, push, done — and holds under vibration. The front protection class is IP20 — finger-safe but not sealed; the switch is intended for use inside a panel enclosure with a higher overall IP rating. ## Contact Configuration and Reliability Two NC contacts, both wired as normally-closed — the current path is 1 NC, 1 NC. The leading and lagging switching contacts are both listed as 0, meaning no make-before-break or break-before-make sequencing; both NC paths open simultaneously. Contact reliability is specified as 1 faulty switching per 100 million operations at 17 V, 1 mA — this is the low-energy switching limit, important for PLC input circuits where dry-contact signals must not bounce or fail to close. Mechanical service life is 10 million switching cycles typical — the switch outlasts most contactor main contacts under normal control duty.","metaTitle":"Siemens 3RH2911-2HA02-ZX95 Auxiliary Switch, 10 A","metaDescription":"Siemens SIRIUS auxiliary switch front-mount for 3RT2/3RH2 contactors. 2 NC, spring-loaded terminals, 10 A max, IP20 front. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Note":"with 3RH2","Depth":"47.7 mm","Width":"36 mm","title":"3RH2911-2HA02-ZX95","Height":"41.5 mm","Maximum":"10 A","at 24 V":"6 A","at 60 V":"2 A","at 110 V":"1 A","at 125 V":"6 A","at 220 V":"0.3 A","at 230 V":"6 A","at 250 V":"6 A","at 400 V":"3 A","description":"auxiliary switch, on the front, 2 NC,.1/.2,.1/.2, --/--, --/--, current path: 1 NC, 1 NC, --, --, spring-loaded terminal, for contactors 3RT2 and contactor relays 3RH2, reusable packaging, pack = 321 units","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"snap-on mounting","Lagging Switching":"0","Product Brand Name":"SIRIUS","Suitability For Use":"Contactor relay and power contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 440 V rated value":"0.5 A","at 600 V rated value":"0.26 A","Instantaneous Contact":"0","With Core End Processing":"2x (0.5 ... 1.5 mm²)","Without Core End Processing":"2x (0.5 ... 2.5 mm²)","at AC-15 at 690 V rated value":"1 A","protection class IP on the front":"IP20","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Mechanical Service Life (Switching Cycles) Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"spring-loaded terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5ca1f55953f461569f848c386f3ea55e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=951038&mlfb=3RH2911-2HA02-ZX95"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2911-2HA02-ZX95","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RH2911-2HA02-ZX95 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}